Kristall und Technik · 1969 · 167 citations · 10 references
Natural SciencesMaterials SciencePhysicsInorganic ChemistryPhysical ChemistrySolid State PhysicsCrystal ChemistryCrystal GrowthCrystallization ProcessesGrain GrowthMineral GrowthNucleationCritical SupersaturationCrystal Growth KineticsCrystal NucleationCrystal Nucleation KineticsCrystallization KineticsInduction PeriodInterfacial Surface TensionSupersaturation
Abstract Homogeneous nucleation followed by diffusion controlled crystal growth was observed in highly supersaturated solutions of BaSO 4 , BaCrO 4 , BaMoO 4 , BaWO 4 , BaCO 3 , PbSO 4 , PbCrO 4 , PbCO 3 , SrSO 4 , and CaWO 4 . In the range of concentrations where the number of homogeneously nucleated particles is larger than the number of heteronuclei the induction period decreases from 1 to 10 −4 sec, and the number of particles found per cm 3 increases from 10 7 to 10 12 with increasing concentration. Theoretical maps showing the rate determining mechanisms of crystal growth are drawn for different values of the physical parameters, primarily crystal size, supersaturation ratio, and interfacial tension. The techniques used for rapid mixing and for film recording are described.
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